| Önologe | enologist |
| Önologie | oenology enology |
| Ontologe | ontologist |
| Onkologe | oncologist |
| Ökologe | ecologist |
| Phonologe | phonologist |
| Pönologie | penology |
| Önologin | oenologist |
| Monolog | monologue |
| Sinologe | sinologist |
| -ologe | -ologist |
| Oologie | oology |
| Podologe | podiatrist |
| Ufologe | ufologist |
| Biologe | biologist |
| Geologe | geologist |
| Onkologie | oncology |
| Ontologie | ontology |
| Otologie | otology |
| Pomologe | pomologist |